30 lines
1.1 KiB
C++
30 lines
1.1 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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// Copyright 2015 John Maddock. Distributed under the Boost
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// Software License, Version 1.0. (See accompanying file
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// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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#include <boost/rational.hpp>
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int main()
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{
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#ifndef BOOST_NO_CXX11_CONSTEXPR
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constexpr boost::rational<int> i1;
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constexpr boost::rational<int> i2(3);
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constexpr boost::rational<long long> i3(i2);
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constexpr boost::rational<short> i4(i2);
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constexpr boost::rational<long long> i5(23u); // converting constructor
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// constexpr boost::rational<short> i6(23u); // Not supported, needs an explicit typecast in constructor.
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static_assert(i1.numerator() == 0, "constexpr test");
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static_assert(i1.denominator() == 1, "constexpr test");
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static_assert(i2.numerator() == 3, "constexpr test");
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static_assert(i2.denominator() == 1, "constexpr test");
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static_assert(i3.numerator() == 3, "constexpr test");
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static_assert(i3.denominator() == 1, "constexpr test");
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static_assert(!i1, "constexpr test");
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static_assert(i2, "constexpr test");
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#endif
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return 0;
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}
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